Steam-trap



No. 6I0,862. Patented Sept. I3, 1898. H. HELLINGL STEAM TRAP.

(Application filed Feb. 7, 1898.

(No Model.)

5 vwewtoz THE uunms PETERS co. vuoyoumo. WASHANGTOM o. c.

HENRY HELLING, OF DENVER, COLORADO.

STEAM-TRAP.

SPECIFICATION forming part of Letters Patent No. 610,862, datedSeptember 13, 1898.

Application filed February 7, 1898. Serial No. 669,310. (No model.)

' zen of the United States of America, residing at Denveigin the countyof Arapahoe and State of Colorado, have invented certain new and usefulImprovements in Steam-Traps; and I do declare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawing, and to thefigures of reference marked thereon, which form a part of thisspecification.

My invention lrelates to improvements in steam-traps, my object being toprovide a de vice of this class which will be simple in construction,economical in cost, reliable, durable, and efficient in use; and tothese ends the invention consists of the features, arrangements, andcombinations hereinafter described and claimed, all of which will befully understood by reference to the accompanying drawing, in which isillustrated an embodiment thereof.

The drawing shows a vertical longitudinal section taken through myimproved steamtrap.

The casing 5 occupies a vertical position and is provided with athreaded opening 5 in its top, into which is screwed an elbow connection(3, communicating with the steampipe 4 of the system or other apparatusWhere a steam-trap is needed. The casing 5 should be attached to thelowest pipe of the system in order to thoroughly drain the pipes of thewater of condensation. The bottom of the casing 5 is provided with anexterior horizontal flange 5. The bottom of the casing is closed byahead-plate 7, which is attached to the casing by bolts 8, which passthrough registering apertures formed in the plate and flange 5. In thisplate 7 is formed a threaded aperture 7 into which is screwed the lowerextremity of a tube 9, which projects upwardly into the casing 5. Thelower extremity of this tube is provided with a threaded aperture, intowhich is screwed an apertured nipple 10, whose upper extremity forms aseat for the valve 12, which is attached to a small rod 13, whose upperextremity is threaded and passes through an guide therefor.

aperture formed in a stirrup-shaped bracket 14*, formed on the bottom ofa hollow float 14, inclosed by the casing. A nut 16 is screwed upon thethreaded extremity of the rod for regulating the length of the rod belowthe stirrup, whereby the position of the valve may be adjusted to allowthe water to escape more or less quickly, as desired. The upperextremity of the valve 12 is enlarged, forming a'stop adapted to engageaperforated disk 9, formed in the tube 9, for the purpose of limitingthe upward movement of the valve. The valve-rod 13 passes through anopening formed in the perforated disk which forms a The lower extremityof the valve 12 is provided with a guide-pin 12, which projects belowthe valve-seat when the valve is open and maintains the valve in placeat all times. The tube 9 formsa shield to prevent the stopping of theescape-orifice in the nipple 10 by reason of the accumulation of dirt orsettlings in the bottom of the casing. A small valve 15 is inserted inthe top of the casing. This valve is normally closed, but may be openedto permit the escape of any air that may accumulate in the top of thecasing.

The operation of the device is as follows: Assuming that the casing isempty and the valve closed by the gravity of the float and itsattachments, the steam and water of condensation enter the casing by wayof the pipe 4 and the elbow 6. As the water accumul'ates in the casingthe float rises and opens the valve, allowing the water to escape untilit is lowered sufficiently to allow the float to drop and close thevalve, thus preventing the escape of steam. The valve will then remainclosed until the water again accumulates to raise the float and open thevalve, as before explained.

Having thus described myinvention, what I claim is- 1. In a steam-trap,the combination of a casing having an opening in its top for theentrance of the water of condensation from the steam system or otherapparatus, a float inclosed by the casing and provided with astirrup-shaped bracket attached to its bottom and provided with anopening, an escapeopening formed in the bottom of the casing andsurrounded by a valve-seat, a shield surrounding said valve-seat andprojecting upward into the casing, a valve located in the shield, itslower extremity being provided with a guide-pin adapted to project belowthe valve-seat when the valve is open, a rod connected with the upperextremity of the valve, the upper extremity of the said rod beingthreaded and passing through the opening formed in the stirrup-shapedbracket attached to the bottom of the float, and a nut screwed upon thethreaded extremity of the said rod and resting upon the bracket, as andfor the purpose set forth.

2. In a steam-trap, the combination with a casing having an opening inits top for the water of condensation from the steam system or otherapparatus, a float inclosed by the casing and provided with an aperturedstirrup-shaped bracket attached to its bottom,

an escape-opening being formed in the bottom of the casin g andsurrounded by a valve-seat, a shield surrounding said valve-seat andprojecting upward into the casing, a valve located within the shield andadapted to engage the valve-seat, a rod connected with the upperextremity of the valve, the upper extremity of the said rod beingthreaded and passing through the aperture formed in the stirrup-shapedbracket attached to the bottom of the float, and a nut screwed upon thethreaded extremity of the said rod and resting upon the bracket.

In testimony whereof I affix my signature in presence of two witnesses.

HENRY HELLING. Vitnesses:

A. J. OBRIEN, EDITH HnINswoRTH.

